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Wenwu Cao - One of the best experts on this subject based on the ideXlab platform.
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determination of full Matrix Material constants of 111 c poled mn doped 0 24pb in1 2nb1 2 o3 0 46pb mg1 3nb2 3 o3 0 30pbtio3 single domain single crystal using one sample
Journal of Applied Physics, 2016Co-Authors: Limei Zheng, Wenwu Cao, Jing Chen, Enwei Sun, Ming YangAbstract:To date, there is no report in the literature regarding the full set of Material constants of single crystals with 3m symmetries using less than 5 samples. Multiple samples make the data self-consistency difficult due to sample to sample variations, which is severe in ferroelectric Materials because the poling depends strongly on the sample geometry. To eliminate errors caused by property variation from sample to sample, a combined ultrasonic and inverse impedance spectroscopy characterization method has been developed, which only needs one small sample to get all constants. The method has been used to determine full Matrix Material constants of [111]c poled Mn doped 0.24Pb(In1/2Nb1/2)O3-0.46Pb(Mg1/3Nb2/3)O3-0.30PbTiO3 single crystals. The validity of this method has been verified by comparing the results with those determined by the traditional resonance method using 5 different geometry samples, and the method was proved stable with input data variation within ±10%.
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temperature dependence of self consistent full Matrix Material constants of lead zirconate titanate ceramics
Applied Physics Letters, 2015Co-Authors: Liguo Tang, Wenwu CaoAbstract:Up to date, there are no self-consistent data in the literature on the temperature dependence of full Matrix Material properties for piezoelectric Materials because they are extremely difficult to determine. Using only one sample, we have measured the temperature dependence of full Matrix constants of lead zirconate titanate (PZT-4) from room temperature to 120 °C by resonant ultrasound spectroscopy. Self-consistency is guaranteed here because all data at different temperatures come from one sample. Such temperature dependence data would make it a reality to accurately predict device performance at high temperatures using computer simulations.
Laura K. Weber - One of the best experts on this subject based on the ideXlab platform.
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High-flexibility combinatorial peptide synthesis with laser-based transfer of monomers in solid Matrix Material
Nature Communications, 2016Co-Authors: Felix F. Loeffler, Tobias C. Foertsch, Roman Popov, Daniela S. Mattes, Martin Schlageter, Martyna Sedlmayr, Barbara Ridder, Florian-xuan Dang, Clemens Von Bojničić-kninski, Laura K. WeberAbstract:Laser writing is used to structure surfaces in many different ways in Materials and life sciences. However, combinatorial patterning applications are still limited. Here we present a method for cost-efficient combinatorial synthesis of very-high-density peptide arrays with natural and synthetic monomers. A laser automatically transfers nanometre-thin solid Material spots from different donor slides to an acceptor. Each donor bears a thin polymer film, embedding one type of monomer. Coupling occurs in a separate heating step, where the Matrix becomes viscous and building blocks diffuse and couple to the acceptor surface. Furthermore, we can consecutively deposit two Material layers of activation reagents and amino acids. Subsequent heat-induced mixing facilitates an in situ activation and coupling of the monomers. This allows us to incorporate building blocks with click chemistry compatibility or a large variety of commercially available non-activated, for example, posttranslationally modified building blocks into the array's peptides with 417,000 spots per cm(2).
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high flexibility combinatorial peptide synthesis with laser based transfer of monomers in solid Matrix Material
Nature Communications, 2016Co-Authors: Felix F. Loeffler, Tobias C. Foertsch, Roman Popov, Daniela S. Mattes, Martin Schlageter, Martyna Sedlmayr, Barbara Ridder, Florian-xuan Dang, Clemens Von Bojnicickninski, Laura K. WeberAbstract:Peptide arrays are used in areas such as measuring protein-protein interactions, but achieving high density in synthesis is challenging. Here, the authors report a method for the combinatorial synthesis of high density peptides arrays by laser driven sequential transfer of monomers onto acceptor surfaces.
Liguo Tang - One of the best experts on this subject based on the ideXlab platform.
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Determination of temperature dependence of full Matrix Material constants of PZT-8 piezoceramics using only one sample.
Journal of Alloys and Compounds, 2017Co-Authors: Yang Zhang, Liguo Tang, Hua Tian, Jiyang Wang, Zhongwu ZhangAbstract:Abstract Resonant ultrasound spectroscopy (RUS) was used to determine the temperature dependence of full Matrix Material constants of PZT-8 piezoceramics from room temperature to 100 °C. Property variations from sample to samples can be eliminated by using only one sample, so that data self-consistency can be guaranteed. The RUS measurement system error was estimated to be lower than 2.35%. The obtained full Matrix Material constants at different temperatures all have excellent self-consistency, which can help accurately predict device performance at high temperatures using finite element simulations.
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temperature dependence of self consistent full Matrix Material constants of lead zirconate titanate ceramics
Applied Physics Letters, 2015Co-Authors: Liguo Tang, Wenwu CaoAbstract:Up to date, there are no self-consistent data in the literature on the temperature dependence of full Matrix Material properties for piezoelectric Materials because they are extremely difficult to determine. Using only one sample, we have measured the temperature dependence of full Matrix constants of lead zirconate titanate (PZT-4) from room temperature to 120 °C by resonant ultrasound spectroscopy. Self-consistency is guaranteed here because all data at different temperatures come from one sample. Such temperature dependence data would make it a reality to accurately predict device performance at high temperatures using computer simulations.
Felix F. Loeffler - One of the best experts on this subject based on the ideXlab platform.
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High-flexibility combinatorial peptide synthesis with laser-based transfer of monomers in solid Matrix Material
Nature Communications, 2016Co-Authors: Felix F. Loeffler, Tobias C. Foertsch, Roman Popov, Daniela S. Mattes, Martin Schlageter, Martyna Sedlmayr, Barbara Ridder, Florian-xuan Dang, Clemens Von Bojničić-kninski, Laura K. WeberAbstract:Laser writing is used to structure surfaces in many different ways in Materials and life sciences. However, combinatorial patterning applications are still limited. Here we present a method for cost-efficient combinatorial synthesis of very-high-density peptide arrays with natural and synthetic monomers. A laser automatically transfers nanometre-thin solid Material spots from different donor slides to an acceptor. Each donor bears a thin polymer film, embedding one type of monomer. Coupling occurs in a separate heating step, where the Matrix becomes viscous and building blocks diffuse and couple to the acceptor surface. Furthermore, we can consecutively deposit two Material layers of activation reagents and amino acids. Subsequent heat-induced mixing facilitates an in situ activation and coupling of the monomers. This allows us to incorporate building blocks with click chemistry compatibility or a large variety of commercially available non-activated, for example, posttranslationally modified building blocks into the array's peptides with 417,000 spots per cm(2).
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high flexibility combinatorial peptide synthesis with laser based transfer of monomers in solid Matrix Material
Nature Communications, 2016Co-Authors: Felix F. Loeffler, Tobias C. Foertsch, Roman Popov, Daniela S. Mattes, Martin Schlageter, Martyna Sedlmayr, Barbara Ridder, Florian-xuan Dang, Clemens Von Bojnicickninski, Laura K. WeberAbstract:Peptide arrays are used in areas such as measuring protein-protein interactions, but achieving high density in synthesis is challenging. Here, the authors report a method for the combinatorial synthesis of high density peptides arrays by laser driven sequential transfer of monomers onto acceptor surfaces.
Minna Kellomaki - One of the best experts on this subject based on the ideXlab platform.
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self reinforced composites of bioabsorbable polymer and bioactive glass with different bioactive glass contents part ii in vitro degradation
Acta Biomaterialia, 2008Co-Authors: Tiiu Niemela, Henna Niiranen, Minna KellomakiAbstract:Abstract The in vitro degradation behavior of self-reinforced bioactive glass-containing composites was investigated comparatively with plain self-reinforced Matrix polymer. The Materials used were spherical bioactive glass 13–93 particles, with a particle size distribution of 50–125 μm, as a filler Material and bioabsorbable poly- l , dl -lactide 70/30 as a Matrix Material. The composites containing 0, 20, 30, 40 and 50 wt.% of bioactive glass were manufactured using twin-screw extruder followed by self-reinforcing. The samples studied were characterized determining the changes in mechanical properties, thermal properties, molecular weight, mass loss and water absorption in phosphate-buffered saline at 37 °C for up to 104 weeks. The results showed that the bioactive glass addition modified the degradation kinetics and Material morphology of the Matrix Material. It was concluded that the optimal bioactive glass content depends on the applications of the composites. The results of this study could be used as a guideline when estimating the best filler content of other self-reinforced osteoconductive filler containing composites which are manufactured in a similar way.